Electrically Elevated Baby Crib

ABSTRACT

An electrically elevated baby crib comprises a crib frame and a lifting mechanism fixed inside of the crib frame. The lifting mechanism comprises a bottom support frame, a bed board bracket and a support assembly disposed between the bottom support frame and the bed board bracket. The support assembly includes a first and second support arms intersecting and hingedly connecting with each other by a central axis at the intersection joint. At one side of the support assembly, the upper portion of the first support arm and the lower portion of the second support arm respectively are hingedly connected to the bed board bracket and the bottom support frame, and at opposite side of the support assembly, the lower portion of the first support arm and the upper portion of the second support arm respectively are slidably connected to the bottom support frame and the bed board bracket.

RELATED APPLICATIONS

This application claims priority to CN application no. CN201320366808.2 filed Jun. 26, 2013 under 35 U.S.C. 119 (a).

FIELD OF THE INVENTION

The present invention relates to a baby crib, more particularly to an electrically elevated baby crib.

DESCRIPTION OF THE RELATED ART

With the development of living standards, baby products such as baby cribs are increasingly favored by users. In the prior art, a baby crib generally comprises a crib frame, a bed board and a guardrail. Usually, the bed board and guardrail are fixedly provided on the crib frame. The above baby crib has simple configuration, but some defects are existed in such a baby crib, for example, the height of the bed board is not adjustable. Furthermore, in order to meet the requirements of users, there are some baby cribs with adjustable bed boards in the current market. Generally, the bed boards can be adjusted in three or more height locations on support frames. The bed boards can be fixed at different height locations as required when the baby cribs are assembled. When a user desires to change the height of the bed boards, the guardrails of the baby cribs must be dismounted to place the bed boards at desired locations, and then the bed boards are fixed by (such as) screws to assemble the baby cribs. However, some other disadvantages are existed in these baby cribs, such as, the bed boards must be dismounted before reassembly, and this is not convenient and will damage the baby crib due to repeated disassembly and assembly. Additionally, the real-time adjustment of the bed boards cannot be achieved.

SUMMARY OF THE INVENTION

The technical problem to be solved by the invention is to provide an electrically elevated baby crib, wherein the bed board can be raised or dropped automatically, thus repeated disassembly and reassembly of the baby crib can be avoided.

In order to solve the above technical problem, an electrically elevated baby crib comprising a crib frame and a lifting mechanism is disclosed in the invention, the lifting mechanism comprises:

a bottom support frame disposed inside of the crib frame at a lower portion thereof

a bed board bracket disposed above the bottom support frame for supporting a bed board ;

a support assembly disposed between the bottom support frame and the bed board bracket, which is consisted of a first and second support arms intersecting and hingedly connecting with each other by a central axis at the intersection joint A, at one side of the support assembly, the upper portion of the first support arm being hingedly connected to the bed board bracket and the lower portion of the second support arm being hingedly connected to the bottom support frame, and at the opposite side of the support assembly, the lower portion of the first support arm being slidably connected to the bottom support frame and the upper portion of the second support arm being slidably connected to the bed board bracket; and

an electric elevator for driving the support assembly, one end of which is rotatably connected to the lower portion of the first support arm and spaced from the central axis, and the other end of which is rotatably connected to the upper portion of the second support arm and spaced from the central axis;

wherein the lifting mechanism further comprises an electric motor for driving the electric elevator, the electric motor being driven by a low-voltage direct current power supply.

Preferably, the bottom support frame and bed board bracket respectively are provided with a guide rail, and the lower portion of the first support arm and the upper portion of the second support arm respectively sliding along the guide rail by a roller.

More preferably, the support assembly comprises two set of first and second support arms, the two first support arms of the support assembly substantially being parallel to each other and the two second support arms of the support assembly substantially being parallel to each other, a first connecting rod being connected between the two parallel first support arms with two end respectively being connected to the lower portions of the two first support arms and spaced from the central axes, and a second connecting rod being connected between the two parallel second support arms with two end respectively being connected to the upper portions of the two second support arms and spaced from the central axes.

Still more preferably, the electric elevator has a driving end and an operating end which are hingedly connected with the first and second connecting rods respectively.

Preferably, the low-voltage direct current power supply is consisted of a plurality of batteries.

More preferably, a fixing base is disposed inside of the crib frame at a lower portion thereof for fixing the plurality of batteries.

Preferably, the electric elevator is an electric drive pusher.

More preferably, a control switch of the electric elevator is disposed at one side of the crib frame, thus, convenient lifting of the crib frame can be achieved.

Still more preferably, the crib frame is provided with a guardrail for preventing the baby failing from the baby crib, wherein the guardrail can be set at three or four sides of the crib frame as required.

Preferably, multiple wheels are disposed at bottom of the crib frame for conveniently moving the baby crib.

As compared with the prior art, the electrically elevated baby crib of the invention has the following advantages: in the invention, the real-time ascending and descending of the bed board can be achieved only by means of the control switch disposed at one side of the crib frame, thus, repeated disassembly and assembly can be avoided. Furthermore, the baby crib provided in the invention has simple configuration, thus, the assembly of the baby crib is convenient and the standard modular production of baby crib is feasible. Additionally, the electric elevator of the baby crib in the invention can be driven by a low-voltage direct current (DC) power supply consisted of a plurality of batteries, thus, the security of the baby crib can be improved greatly.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a front view of the electrically elevated baby crib according to the invention; and

FIG. 2 is a side view of the electrically elevated baby crib according to the invention.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

The present invention will be described hereinafter with reference to the accompanying drawings. It is to be noted, however, that the drawings are given only for illustrative purpose and therefore not to be considered as limiting of its scope, for the invention may admit to other equally effective embodiments.

For the above technical solution of the invention, now a preferred embodiment of the invention is illustrated with reference to accompany drawings. An electrically elevated baby crib comprises a crib frame and a lifting mechanism disposed inside of the crib frame, the lifting mechanism comprises a bottom support frame, a bed board bracket, a support assembly and an electric elevator.

With reference to FIGS. 1-2, the crib frame (not shown) generally is made from a wood material, because the security is one of the most important issues for baby cribs. In this embodiment, the crib frame is in a shape of square with a guardrail at three sides. In practice, the crib frame can be configured in different shapes as required, and the guardrail can be disposed at two or four sides of the crib frame. In this embodiment, each of the four feet of the crib frame is provided with a wheel so that the baby crib can be moved conveniently.

The bottom support frame 1 is made of a metal material, which is fixed inside of the crib frame at a lower portion thereof by screws. On one end of the bottom support frame 1, two guide rails 11 are fixed face to face at both sides, and the openings of which are face to face in a left-right direction.

The bed board bracket 2 is made of a metal material, which is located above and substantially parallel to the bottom support frame 1. Corresponding to the guide rails 11 on the bottom support frame 1, two guide rails 21 are disposed face to face on the corresponding end of the bed board bracket 2. A bed board frame 22 is fixed on the bed board bracket 2 for supporting a mattress, which is accommodated and movable up and down inside the crib frame. The openings of the guide rails 11 and 21 are face to face in the left-right direction so that rollers will not move up and down when they move along the guide rails. Of course, the openings of guide rails 11 of the bottom support frame 1 and the openings of guide rails 21 may be face to face in an up-down direction. From this, the free ends of the support arms can move along the guide rails and the bed board bracket 2 can be raised or dropped more conveniently. Thus, the maintenance is convenient if the baby crib can not work well.

The support assembly is positioned between the bottom support frame 1 and the bed board bracket 2. In this embodiment, the support assembly 3 comprises two set of first and second support arms (31, 32), the two first support arms 31 are substantially parallel to each other, and the two second support arms 32 are also substantially parallel to each other. The upper support point 311 of the upper portion of the first support arm 31 is hingedly connected to the bed board bracket 2 at one side of the support assembly, and the lower support point 312 is a free end, which is provided with a roller 33, the roller 33 is located on the guide rail 11 of the bottom support frame 1. The lower support point 321 of the second support arm 32 is hingedly connected to the bottom support frame 1 at the corresponding side of the support assembly, and the upper support point 322 is a free end, which is provided with a roller 34, the roller 34 is located on the guide rail 21 of the bed board bracket 2. From this, the upper support point 311 of the first support arm 31 and the lower support point 321 of the second support arm 32 respectively are hingedly connected to the bed board bracket 2 and bottom support frame 1 at the same side of the support assembly. The lower support point 312 of the first support arm 31 and the upper support point 322 of second support arm 32 respectively are arranged on the guide rails of the bottom support frame 1 and bed board bracket 2 at the other same side of the support assembly. The lower support point 312 of the first support arm 31 and the upper support point 322 of the second support arm 32 can move along the guide rails under the action of an external force. Thus, the bed board bracket 2 is supported above the bottom support frame 1 by means of the four support points of the support assembly. In the support assembly, a first connecting rod 35 is connected between the two parallel first support arms 31, and the two ends of the first connecting rod 35 respectively are connected to the lower portions of the two first support arms 31 and spaced from the central axes. A second connecting rod 36 is connected between the second parallel support arms 32, and the two ends of the second connecting rod 36 respectively are connected to the upper portions of the two second support arms 32 and spaced from the central axes.

In this embodiment, the electric elevator 4 is an electric drive pusher. The driving end of the electric elevator 4 is hingedly connected with the first connecting rod 35, and the operating end of the electric elevator 4 is hingedly with the second connecting rod 36 by a connecting part. The battery box 41 of the electric elevator 4 is arranged on the first connecting rod 35, and the control switch (not shown) of the electric elevator 4 is disposed at one side of the crib frame. When a user desires to raise the bed board, he/she can turn on the control switch of the electric elevator 4 so that operating end thereof provides an external force to push the first connecting rod 36, then the upper support points 322 of the second support arms 32 and the lower support points 312 of the first support arms 31 will move towards the intersection joint A along the guide rails, thereby the bed board bracket 2 will be moved upwards to the desired location. When the user desires to drop the bed board, the reverse operation shall be performed, specifically, the operating end of the electric elevator 4 returns to cause that the upper support points 322 and the lower support points 312 move away from the intersection joint A. Thus, the bed board bracket 2 can be raised or dropped automatically according to the invention.

As described above, the detailed description is illustrated according to the spirit of the invention, but the invention is not limited to the aforementioned embodiments and implementing methods. Many variations and implements can be made within the scope of the invention by those skilled in the related art. 

1. An electrically elevated baby crib comprising a crib frame and a lifting mechanism which comprises: a bottom support frame (1) disposed inside of the crib frame at a lower portion thereof; a bed board bracket (2) disposed above the bottom support frame (1) for supporting a bed board; a support assembly (3) disposed between the bottom support frame (1) and the bed board bracket (2), which is consisted of a first and second support arms (31, 32) intersecting and hingedly connecting with each other by a central axis at the intersection joint A, at one side of the support assembly (3), the upper portion of the first support arm (31) being hingedly connected to the bed board bracket (2) and the lower portion of the second support arm (32) being hingedly connected to the bottom support frame (1), and at the opposite side of the support assembly, (3) the lower portion of the first support arm (31) being slidably connected to the bottom support frame (1) and the upper portion of the second support arm (32) being slidably connected to the bed board bracket (2); and an electric elevator for driving the support assembly, one end of which is rotatably connected to the lower portion of the first support arm (31) and spaced from the central axis, and the other end of which is rotatably connected to the upper portion of the second support arm (32) and spaced from the central axis; wherein the lifting mechanism further comprises an electric motor for driving the electric elevator, which is driven by a low-voltage direct current power supply, wherein the low-voltage direct current power supply consists of a plurality of batteries.
 2. The electrically elevated baby crib as claimed in claim 1, wherein the bottom support frame (1) and bed board bracket (2) respectively are provided with a guide rail, and the lower portion of the first support arm (31) and the upper portion of the second support arm (32) respectively sliding along the guide rail by a roller.
 3. The electrically elevated baby crib as claimed in claim 1, wherein the support assembly (3) comprises two set of first and second support arms (31,32), the two first support arms (31) of the support assembly (3) substantially being parallel to each other and the two second support arms (32) of the support assembly (3) substantially being parallel to each other, a first connecting rod being connected between the two parallel first support arms (31) with two ends respectively being connected with the lower portions of the two first support arms (31) and spaced from the central axes, and a second connecting rod being connected between the two parallel second support arms (32) with two ends respectively being connected with the upper portions of the two second support arms (32) and spaced from the central axes.
 4. The electrically elevated baby crib as claimed in claim 3, wherein the electric elevator has a driving end and an operating end which are hingedly connected with the first and second connecting rods respectively.
 5. (canceled)
 6. The electrically elevated baby crib as claimed in claim 1, wherein a fixing base is disposed inside of the crib frame at a lower portion thereof for fixing the plurality of batteries.
 7. The electrically elevated baby crib as claimed in claim 1, wherein the electric elevator is an electric drive pusher.
 8. The electrically elevated baby crib as claimed in claim 1, wherein a control switch of the electric elevator is disposed at one side of the crib frame.
 9. The electrically elevated baby crib as claimed in claim 1, wherein the crib frame is provided with a guardrail.
 10. The electrically elevated baby crib as claimed in claim 1, wherein multiple wheels are disposed at bottom of the crib frame. 